Technical Data
41
Fig. 5-8
Null-Modem Cable Wiring
Side A
Side B
Side A Connector
Side B Connector
SUB-D9 female
SUB-D9 female
Side A Connector
Side B Connector
Description
Pin
Pin
Description
RxD Receive Data
2
3
TxD Transmit Data
TxD Transmit Data
3
2
RxD Receive Data
DTR Data Terminal
Ready
4
6 and
1
DSR Data Set Ready +
DCD Data Carrier
Detect
GND System Ground
5
5
GND System Ground
DSR Data Set Ready +
DCD Data Carrier Detect
6 and
1
4
DTR Data Terminal
Ready
RTS Request To Send
7
8
CTS Clear To Data
CTS Clear To Data
8
7
RTS Request To Send
(5) GND
(2) RxD
(3) TxD
(7) RTS
(8) CTS
(4) DTR
(6) DSR
(1) DCD
GND (5)
RxD (2)
TxD (3)
RTS (7)
CTS (8)
DTR (4)
DSR (6)
DCD (1)
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